my buddies building his 71 amx. hes getting it to show condition but hes also going to have 500 horses under the hood to run down the track once in a while. he wants to add a roll cage, but hes wondering if in a 71 would it ruin the value at all? he wants it odviously for the safety but also to show off that hes got a roll cage. so for a 71 amx show car in your opinion is this alright? anyone got pics of a javelina amx with a roll cage?